Product Manual B

5. Maintenance7-2018
89A045R242 (Issue 12) Copyright © 2018 Cummins Inc.
See Battery Charger Maintenance for troubleshooting the charger.
Always:
Keep the battery case and terminals clean and dry and the terminals tight.
Remove battery cables with an insulated wrench or battery terminal puller.
Make sure which terminal is positive (+) and which is negative (-) before
making battery connections, always removing the negative (-) cable first and
reconnecting it last to reduce arcing.
NOTICE
If the battery needs to be replaced, make sure that the replacement battery
specifications match those found in the Model Specifications in this manual.
Charging
Where a consistent source of AC power is available, Cummins recommends the use
of a battery charger to maintain battery condition and charge. Cummins offers
several battery chargers.
Where generator sets are used infrequently and a consistent source of AC power is
not available, battery recharging must be put on a recharge schedule to ensure that
a fully charged condition is maintained.
NOTICE
NEVER allow a battery to become completely flat (fully discharged), or to
stand in a discharged condition, or damage will result.
Follow the battery charger operating instructions for proper use.
5.8 Spark Plugs
NOTICE
Make sure service personnel are qualified to perform electrical and
mechanical service.
The generator set has four spark plugs, all accessible from the top of the engine.
The spark plugs must be in good condition for proper engine starting and
performance. A spark plug that fouls frequently or has heavy soot deposits indicates
the need for engine service.
1. Set the generator set control to the Off position before checking the spark
plugs.
2. To prevent cross-threading a spark plug, always thread it in by hand until it
seats. Torque the spark plug to 20 Nm (15 lb-ft).